Buf fix: clean listener
Buf fix: clean listener

We should clean the listener if the command complete filling.

walkingice/aster,cuongmv162/aster,leijian/aster,kanru/aster,walkingice/aster,kanru/aster,liuyq/aster,leijian/aster,leijian/aster,cuongmv162/aster,z7z8th/aster,Ryan2009/aster,liuyq/aster,Ryan2009/aster,liuyq/aster,walkingice/aster,cuongmv162/aster,z7z8th/aster,kanru/aster,Ryan2009/aster,z7z8th/aster